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    40 ****************************************************************************/

    41 

    42 #include "deviceorientation.h"

    43 

    44 #include <e32base.h>

    45 #include <sensrvchannelfinder.h>

    46 #include <sensrvdatalistener.h>

    47 #include <sensrvchannel.h>

    48 #include <sensrvorientationsensor.h>

    49 

    50 class SymbianOrientation : public DeviceOrientation, public MSensrvDataListener

    51 {

    52     Q_OBJECT

    53 public:

    54     SymbianOrientation()

    55         : DeviceOrientation(), m_current(UnknownOrientation), m_sensorChannel(0)

    56     {

    57         TRAP_IGNORE(initL());

    58         if (!m_sensorChannel)

    59             qWarning("No valid sensors found.");

    60     }

    61 

    62     ~SymbianOrientation()

    63     {

    64         if (m_sensorChannel) {

    65             m_sensorChannel->StopDataListening();

    66             m_sensorChannel->CloseChannel();

    67             delete m_sensorChannel;

    68         }

    69     }

    70 

    71     void initL()

    72     {

    73         CSensrvChannelFinder *channelFinder = CSensrvChannelFinder::NewLC();

    74         RSensrvChannelInfoList channelInfoList;

    75         CleanupClosePushL(channelInfoList);

    76 

    77         TSensrvChannelInfo searchConditions;

    78         searchConditions.iChannelType = KSensrvChannelTypeIdOrientationData;

    79         channelFinder->FindChannelsL(channelInfoList, searchConditions);

    80 

    81         for (int i = 0; i < channelInfoList.Count(); ++i) {

    82             TRAPD(error, m_sensorChannel = CSensrvChannel::NewL(channelInfoList[i]));

    83             if (!error)

    84                 TRAP(error, m_sensorChannel->OpenChannelL());

    85             if (!error) {

    86                 TRAP(error, m_sensorChannel->StartDataListeningL(this, 1, 1, 0));

    87                 break;

    88            }

    89             if (error) {

    90                 delete m_sensorChannel;

    91                 m_sensorChannel = 0;

    92             }

    93         }

    94 

    95         channelInfoList.Close();

    96         CleanupStack::Pop(&channelInfoList);

    97         CleanupStack::PopAndDestroy(channelFinder);

    98     }

    99 

   100     Orientation orientation() const

   101     {

   102         return m_current;

   103     }

   104 

   105    void setOrientation(Orientation) { }

   106 

   107 private:

   108     DeviceOrientation::Orientation m_current;

   109     CSensrvChannel *m_sensorChannel;

   110 

   111     void DataReceived(CSensrvChannel &channel, TInt count, TInt dataLost)

   112     {

   113         if (channel.GetChannelInfo().iChannelType == KSensrvChannelTypeIdOrientationData) {

   114             TSensrvOrientationData data;

   115             for (int i = 0; i < count; ++i) {

   116                 TPckgBuf<TSensrvOrientationData> dataBuf;

   117                 channel.GetData(dataBuf);

   118                 data = dataBuf();

   119                 Orientation o = UnknownOrientation;

   120                 switch (data.iDeviceOrientation) {

   121                 case TSensrvOrientationData::EOrientationDisplayUp:

   122                     o = Portrait;

   123                     break;

   124                 case TSensrvOrientationData::EOrientationDisplayRightUp:

   125                     o = Landscape;

   126                     break;

   127                 case TSensrvOrientationData::EOrientationDisplayLeftUp:

   128                 case TSensrvOrientationData::EOrientationDisplayDown:

   129                 case TSensrvOrientationData::EOrientationUndefined:

   130                 case TSensrvOrientationData::EOrientationDisplayUpwards:

   131                 case TSensrvOrientationData::EOrientationDisplayDownwards:

   132                 default:

   133                     break;

   134                 }

   135 

   136                 if (m_current != o && o != UnknownOrientation) {

   137                     m_current = o;

   138                     emit orientationChanged();

   139                 }

   140            }

   141         }

   142     }

   143 

   144    void DataError(CSensrvChannel& /* channel */, TSensrvErrorSeverity /* error */)

   145    {

   146    }

   147 

   148    void GetDataListenerInterfaceL(TUid /* interfaceUid */, TAny*& /* interface */)

   149    {

   150    }

   151 };

   152 

   153 

   154 DeviceOrientation* DeviceOrientation::instance()

   155 {

   156     static SymbianOrientation *o = 0;

   157     if (!o)

   158         o = new SymbianOrientation;

   159     return o;

   160 }

   161 

   162 #include "deviceorientation_symbian.moc"